内容摘要：He reiterated his promises to make healthcare - most critically GP appointments - more affordable, put buying a house in reach for more Australians, and do more to address climate change and protect the environment.

He reiterated his promises to make healthcare - most critically GP appointments - more affordable, put buying a house in reach for more Australians, and do more to address climate change and protect the environment.

Ms Rasmussen says that solid-state devices can go further than incremental improvements because "not only do they eliminate those super-polluting refrigerants, but they can also offer improved efficiency to the systems".RMI has identified between 10 and 20 start-ups working on early versions of solid-state cooling devices.

One of those startups is the German company Magnotherm, which uses magnets. Certain materials change temperature when exposed to magnetic fields."With our technology, it's inherently safe because it's not toxic, it's a metal, and we operate at very low pressures," according to Timur Sirman, the CEO and cofounder of Magnotherm.The idea of magnetocaloric cooling has been around for years, but commercialising it is relatively new. Magnotherm has built about 40 beverage coolers, and about five refrigerators, in what is so far a manual and in-house process.

The permanent magnets are the most expensive part of the technology, Mr Sirman reports. "But it never breaks, so we can always reuse this quite cost-intensive component."The company is seeking out alternative sources of magnetic fields, as well as optimising materials, as they aim to dramatically increase the cooling capacity of their devices.

Mr Sirman believes that if you account for the efficiency and health issues of refrigerants, like leakages, Magnotherm products can compete on price. "We are not targeting customers who are only looking at initial cost."

He acknowledges that for now the company's beverage coolers are quite pricey. Their customers tend to be early adopters of new technologies.These could even apply to some social media platforms, Ofcom told the BBC in January.

The rules are expected to change the way many UK adults will use or encounter some digital services, such as porn sites."As age checks start to roll out in the coming months, adults will start to notice a difference in how they access certain online services," said Dame Melanie Dawes, Ofcom's chief executive, in January.

In April, Discord said it would start testing face-scanning.